Search for missing sub has 'not yielded any results' -Coast Guard

U.S. Coast Guard Captain Jamie Frederick on Tuesday (June 20) said the continued search for a missing submersible near the Titanic "have not yielded any results," as rescuers scour thousands of square miles in the remote North Atlantic two days after the submersible disappeared while taking wealthy tourists to see the wreckage of the Titanic in deep waters off Canada's coast.